Machine for reducing ores



(No Model.) 4 Sheets-Sheet 1.

A. M. HOUSE.

MACHINE FOR REDUCING ORES.

N0. 350,563. Patented Oct- 12, 1886.

(No Model.) 4 Sheets-Sheet 2.

A; M. ROUSE.

MACHINE FOR REDUGING ORES. No. 350,563. Patented Oct. 12, 1886,

I r I; 15117011601 (No Model.) 4 Slieets-Sheet 3.

A. M. ROUSE.

MACHINE FOR REDUCING 0338. v No. 350,563. Patented 0012.12, 1886;

Aes't q I Jiaveza afar,

N PETERS, Phatn-Ulhognphsn Washington. 0. c:

(No Model.)

4 Sheets-Sheet 4. A. M. ROUSE.

MACHINE FOR REDUCING DEBS. No. 350,563.

Patented Oct. 12, 1886.

u. Pwtns. Phamumog nur. Washington. D C.

UNITED. STATES PATENT Oriana,

ALBION M. BOUSE, OF BOULDER, COLORADO.

MACHINE FOR REDUCING ORES.

SPECIFICATION forming part of Letters Patent. No. 350,563, dated October 12, 1886.

- Application filed November 11, 1885. Serial No. 182,441. (No model.)

To all whom it may concern.-

Be it known that I, ALBION M. ROUSE, of the city and county of Boulder, in the State of Colorado, have invented a certain new and useful Improvement in Machines for Reducing Ores, of which the following is a full, clear,

and exact description, reference being had to the accompanying drawings, forming part of this specification.

In the machine suspended rollers roll around within an encircling-ring, toward which they are pressed by springs aided by centrifugal force.

The machine is suited for reducing ore either dry or wet, andworks upon material that has been broken tine enough to pass through a mesh about onequarter of an inch in size.

The details of the invention are indicated in the claims.

Figure I is a side elevation of the machine, with part broken away and the cap or top and hopper removed. Fig. II is a top view of the parts of the machine shown in Fig. I. Fig. 111 is asection of the case, &c., at III III, Fig. II, with partsin elevation. section at IV IV, Fig. VIII. Fig. V is a section at V V, Fig. VI. Fig. VI is a section at VI VI, Fig. V. Fig. VII is a top view of the working-disk. Fig. VIII is a transverse section of the machine at VIII VIII, Fig. II, in its form for working dry ore, the pulley-shaft, 850., being absent. Fig. IX is a bottom View of a part of the cap.

1 is the base-plate, supported bed-plate, 3. I

4 and 5 are standards giving bearing to the drive shaft 6, upon which are tight and loose pulleys 7 and 8. On the shaft 6 is a bevelwheel, 9, engaging a bevel wheel, 10, upon the vertical shaft 11, to which is keyed the working-disk 12. The shaft 11 is stepped on the standard 5, and rests on a bronze or other disk, 13.

14 is the coned center of the base-plate 1, upon which the working-disk-12 has bearing, the cone 14 having in top an annular groove, which receives an annular boss, 15, upon the bottom of the working-disk.

16 is a ring of bronze or other suitable material, upon which the bottom of the annular boss 15 bears. This bearing is oiled by. means by legs 2 on a Fig. IV is a:

ofa pipe, 17, set in the top of the shaft 11 and communicating by an oilhole with the hearing. (See Fig. VIII.) 1

18 is a cap on the pipe 17.

19 is an annular flange extending from the bottom of the workingdisk downward around the outside of the cone 14, so as to prevent grit getting into the bearing between the working-disk and the cone.

the base 1, and standing out at 21 to form an annular hopper.

The wall 20 is made in sections connected by flange-joints at 22. (See Figs. I, II.) The wall has apertures 23, which may be covered by gauze or other screens, 24, (see Figs. I,

- II, and III,) or by plates, (see Fig. VIII,) as

hereinafter explained.

251s the hub of the driving-disk 12, forming a boss upon which the annular hopper 26 has bearing, the hopper turning with the disk.

27 are hollow legs in the hopper, which are set in holes 28 of the disk,.andthrough them the material to be reduced passes fromthe hopper into the interior of the machine. The

desired manner.

or chilled iron, against rollers work.

I 30 is the annular deflecting-wall above the die-ring. The reducing-rollers are supported upon arms 31, which are hinged to the workingdisk by pins 32, which pass through the arms and through holes 33 in the workingdisk- 34 are keys passing through mortises in the tops of the pins and held in place by set-screws 34. The arms 31 have annular bosses 35 36, between which is an annular recess, in which the annular flange 38 of the roller 37 has hearing, the flange turning in this recess. The roller is supported and turns upon a hollow arbor, 39, having an oil-chamber, 40, closed at bottom by a plug, 41, which screws into a recess of'the roller 37. The arbor has oil-holes which the reducing- 42, leading from the oil-chamber to the bean ing-surface between the arbor and the roller, and also an enlarged flange, 39, which bears against a corresponding offset or shoulder formed on the interior of the roller 37.

material may be fed into the hopper in any 29 is a die-ring of hard metal, such as steel 20 is the circular wall of the case, bolted to 43 is a screw, which is scl'ewthreaded in the arbor 39, and whose head, bears upon the top of the armv to hold the arbor in place.

44 is a cast, wrought, or steel ring, forming the working-lace of the roller 37, and held thereon by wedge or wedges 45, or in any suit able manner. Between the roller 37 and the ring 44 is an elastic cushion, 46. The cushion may be made of old rubber or leather belting.

It is customary to rely upon centrifugal :t'orce in this class of mills, but as the motion re quired to impart that force gives bad. results by forming extreme countercurrents, holding the pulp high above the reducing-su rfaces, and wearing the screens wit-h material not fine enough to pass through them, I have in wet work adopted. slow mot-ion, and to force the rollers against the die-ring use springs to assist the centrifugal force.

On top of the arms 31 are cast or otherwise fixed lugs 47 and 4-8, and in said lugs 47 are sockets 49, for the nut ends of rods 50.

51 is a saddle on lug 4S, and through both saddle and lug is a hole to admit free movement of the rod 50, the socket 49 and the hole 52 being made flaring, as shown in section in Fig. II, to allow the uncramped working of the rod 50. At 53 are jam-nuts screwing on the rod 50.

5-1- are rubber springs, through which the rod passes, the springs bearing at one end against the jam-nuts and at the other end against the saddle 51.

It will be seen that the effect of the springs is to force the free ends of the arms 31 asunder, and thus to force the rollers to the die-ring, each of the springs acting upon two of the arms. lVith this combination I secure capac ity for eilleient work with moderate rotary speed. For dry work high speed is admissible, fifteen hundred feet per min ute on the face of the die-ring giving better results than a slower motion, while for wet work the speed should not exceed iive hu nd red feet per minute.

The springs may be of any material or construction, and may be arranged to act on the rollers by other systems of connections; but I prefer placing them in line with the roller centers, as it relieves the propelling mechan ism from undue friction.

At 55 is one of the several ribs upon the bottom of the drivi'ng'disk, to which may be hinged drags (see dotted lines, Fig. VIII) that in dry work carry the material outward from the center tothe die ring 29.

56 is a hood which is used on the mill in dry-pulverizing, the outer part resting on the wall 20. 57 is a marginal downiurncd flange engaging the edgeot' the wall. The center of the hood is open at 58 to admit the top of the hopper, the parts being out of contact as the hopper revolves, and the hood is stationary.

There must be formed an air-joint between the hood and the hopper. For this purpose the hopper is formed with an annular trough, 59, and the hood with an annular-flange, (50, which dips down into the trough, so that when the trough contains liquid, as shown, no air can pass through the orifice 58. The liquid preferred for this purpose is glycerine. On the under side of thehood are radial tubes (31, with their outer ends open to the inside of the mill, while the inner ends of the tubes are closed to the inside of the mill and open to an annular chamber, 62, with which communicate the two ends of a branch pipe, 63, that is in connection with the suction end of a fan or blower or vacuum-producing agent of any suitable kind. By this combination matter in the mill fine enough to move with a given cur rent of air will pass from the inside of the mill to any chamber made toreceive the same, the coarseness of the material which is carried oft depending on the velocity of the air current. If the hood 56 is used, the screenorifices 23 are closed by sheetiron 24. (See Fig. VIII.) This will make the mill close, so that no air will enter the mill except through the hollow legs of the hopper.

The general operation of the machine for wet work is to introduce the ore and water into the hopper, from whence they pass into the machine. The act-ion of the rollers rotates the mass, and each roller. keeps up a cmtntercurrent, by which the tine material is kept in suspension and the coarser material sinks to the bottom and there crumblesunder the ac tion of the rollers. The fine matter passes through the screens 24 into the annular hopper 21 and may be disposed of in any manner.

In working dry ore sheet-iron 24 (see Fig, VIII) is put in place of the screens and the airhood put on and the couplings made for airdraft. The fine material. is carried by suction through the pipes 61, chamber 62, and branch pipe 63, as before set forth.

The part 'numbei'ed 12 is throughout this specification called a working disk; but it will be observed that it is not a disk, strictly speaking that is to say, it is mutilated or cut away for the passage of the vertical axes or hubs of the crushing-rollers, so that the portions which are left constitute nothing more nor less than arms, the width of which will vary according to the extentto which, the disk is cut away. It is only necessary that enough,

of the disk should be retained to afford a hearing to the parts.

I claim- 1.. The combinatiomwith the crushing-roller 37, having a central perforation and an offset or shoulder, substantially as described, of the arm 31, having a perforation, 33, a hollow arbor, 39, having the perforations 42 and the enlarged flange, the screw 43, engaging said arbor and having the enlarged head. bearing upon the arm 31, and the plug 4l, closing the lower end of thepertoration through the roller, as and for the purpose set forth.

2. The combination, with the perforated arm 31, having the downwardly projecting bosses 35 and 3b, forming an annular groove between them, of the crushing-roller 37, having the bearingflange 38 occupying said an- ICC lIS

nular groove, the central perforation and the offset or shoulder, the arbor 39, having the enlarged flange engaging said offset or shoulder, and the screw 43, supporting said arbor, as set forth.

3. The combination, with the perforated arm 31 and the-crushing-roller having a central perforation, of the arbor 39, open from end to end and having the perforations42,and the plugs 41 and 43., closing the respective ends of the arbor 39,substantially as set forth.

4. The combination,with the casing and the horizontal die-ring 29, of the horizontal disk 12, the arm 31, hinged upon a vertical axis to said disk, and .the crushing-roller 37, having a vertical axis proj eeti n g downwardly from the under side of said arm 31, .substantially as set forth.

5. Thecombination with the casing, horizontal die-ring, and the crushing-roller having a vertical axis, of the horizontal working-disk having the cut-away portion for the passage of said vertical axis, and the arm carrying the axis of the crushing-roll, hinged upon a vertical axis to the upper side of said disk, as set forth.

6. The combination, with the casing, die ring, horizontal working-disk l2, and the arm 31, hinged thereto upon avertical axis, of the crushing-roller 37 its axis projecting perpendicularly from the under side of said arm 31, and a spring exerting its force outwardly against said arm, as set forth.

.7. The combinatiomwith the casing, the diering, the working-disk, a plurality of arms hinged thereto, and the crushing-rollers, of a spring engaging at its respective ends with two of said arms,whereby the crushing-rollers are forced outwardly, as set forth.

8. The combination, with the casing, diering, horizontal working disk, a plurality of arms hinged thereto upon vertical axes, and the crushing-rollers having vertical axes carriedby said arms, of springs, each engaging at 7 its respective ends with two of said arms, whereby their free extremities are moved outwardly, as set forth.

9. The combination, with the casing, diering, horizontal working disk, a series of arms (more than two) hinged thereto, and the crushing'rollers, of springs, each hearing at its respective extremities against the two ad- 4 jacent arms, whereby all of the arms of the se- 12. The combination, with the casing, the

die-ring, the working-disk, and the arms 31, hinged thereto, of the lug 47 on one of said arms, having the socket 49, the lug 48 on the other of said arms, having the perforation 52, the rod 50, passing through said perforation and bearing at one extremity in said socket, the nut 53 on said rod, and the spring 54, surrounding said rod, and bearing at its respective extremities against said nut 53, and lug 48, as and for the purposes set forth.

13. In an ore-crusher substantially as here in described, the combination, with the easing, the die ring, the crushing rollers, the workingdisk, and the hopper carried thereby, of the trough carried by said hopper, the liquid contained in said trough, the hood having a central aperture for the passage of said hopper, and the flange dipping into said liquid, and an exhaustpipe communicating with the interior of the machine.

14. In an ore-crusher substantially as herein described, the combination, with the easing, of a hood covering the top thereof and having an aperture therethrough, a hopperspout projecting through said aperture, and a liquid seal between said hopper-spout and hood, substantially as set forth.

15. In an ore -crusher, the combination, with the machine, a hood covering the same, a hopper projecting through said hood, and a liquid joint between said hood and hopper, of the branch pipes 61, communicating with the machine beneath the hood, the annular chamber 62, with which said pipes communicate, and the exhaust-pipe 63, communicating with said chamber 62, substantially as set forth.

16. The combination, with the casing, diering, and baseplate having the raised and perforated center, substantially as described, of the working-disk bearing upon said raised center, thecrushing rollers carried by said disk, and the working-shaft extending through said perforation and carrying said disk, substantially as set forth.

17. The combination, with the casing, diering, the base-plate having the raised center, the working-disk bearing thereon, and the crushing-rollers carried by said disk, of the annular flange extending downward from the under side of the working-disk and surrounding the raised portion of the base, for the purposes set forth.

ALBION M. HOUSE. Inpresence of EDMUND J. BORDEN, ALBION E. RoUsE. 

